Questions Asked

applesjgtl:
A 32kg crate initially moving at 3.5 m/s comes to a stop as it travels along a horizontal floor. As a result of the frictional work, the cr…
 updated 10 months ago
 1 reply
 No Medals Yet

applesjgtl:
A 350 g frisbee moving at 26 m/s is stopped by a student when he catches it, exerting a constant force of 390 N in the opposite direction. H…
 updated one year ago
 3 replies
 3 Medals

applesjgtl:
A polevaulting student (mass 62 kg) clears a bar and then falls from rest from a height of 4.50 m onto a foam rubber pad below. What is her…
 updated one year ago
 1 reply
 1 Medal

applesjgtl:
A moon (3.312*10^15 kg) is orbited by a satellite at 15km. What is the gravitational acceleration that the moon exerts on the satellite as i…
 updated one year ago
 3 replies
 1 Medal

applesjgtl:
Using a lever, a person applies 60 N of force, and this action lifts a 30 kg rock at the other end. What is the mechanical advantage of his …
 updated one year ago
 4 replies
 No Medals Yet

applesjgtl:
The surface of a giant red star exerts a gravitational force of 2.19*10^3 N on a 500g object. If the star's mass equals 3.98*10^31kg, what …
 updated one year ago
 1 reply
 1 Medal

applesjgtl:
What is the gravitational force experienced by a 70kg person standing on Earth's surface due to the moon? The moon's mass is 7.36*10^22 kg,…
 updated one year ago
 3 replies
 2 Medals

applesjgtl:
A physics textbook (mass 0.5000 kg) is attached to the end of a 1.000m string of negligible mass and whirled in a horizontal circular path.…
 updated one year ago
 1 reply
 1 Medal

applesjgtl:
A 100,000 kg boat changes course to take advantage of the ocean current and increases speed from 15.0 m/s to 17.5 m/s. How much work does th…
 updated one year ago
 1 reply
 No Medals Yet

applesjgtl:
A 65.0 kg object is dragged with a force of 950 N at a 30º angle above a horizontal sidewalk for 1.62 km. If the coefficient of kinetic fric…
 updated one year ago
 2 replies
 2 Medals

applesjgtl:
A monkey uses a fishing pole to raise 750g of bananas up to his position 15m above the ground. If the monkey's power output was 330 W, how l…
 updated one year ago
 25 replies
 1 Medal

applesjgtl:
A 1200 kg racecar is driven along a frictionless horizontal surface at a speed of 65 km/hr. If a horizontal cord brings the car to rest in a…
 updated one year ago
 16 replies
 1 Medal

applesjgtl:
A 65.0 kg object is dragged with a force of 950 N at a 30º angle above a horizontal sidewalk for 1.62 km. If the coefficient of kinetic fric…
 updated one year ago
 4 replies
 2 Medals

applesjgtl:
A car weighing 1400kg accelerates from 90 km/hr to 110 km/hr in 6.0s.
a) assuming no friction, what was the power output of the car?
b) If…
 updated one year ago
 16 replies
 2 Medals